Water boils at different temperatures at different elevations. The boiling temperature of water is 212 degrees * F sea level (0 feet ) but drops about 1.72 degrees * F for every 1,000 feet of elevation. Write a formula for the boiling point at a given elevation. Then solve the formula for the elevation when the boiling point for water is 190 degrees F.

The elevation when the boiling point of water is ° is 12790.70 feet

Step-by-step explanation:

Let every 1,000 feet of elevation be . Hence, we can write

Where is the boiling temperature of water at different elevations

Now, to the determine the elevation when the boiling point of water is °.

We will determine by putting °.

Hence,

Since represents every 1,000 feet of elevation, then the elevation when the boiling point of water is °

× feet

Hence,  the elevation when the boiling point of water is ° is 12790.70 feet

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

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step-by-step explanation: